E1 - The Private War of Doctor Doom

Aired: April 01, 2012

While playing host to the Fantastic Four at Avengers Mansion, the Avengers find themselves under attack by Doctor Doom's forces.

E2 - Alone Against A.I.M.

Aired: April 08, 2012

Seeking revenge against Tony Stark, the leader of AIM seizes control of Stark Enterprises' corporate tower.

E3 - Acts of Vengeance

Aired: April 15, 2012

The Enchantress is on a vindictive hunt for Baron von Zemo and he appeals to the Avengers for help against her.

E4 - Welcome to the Kree Empire

Aired: April 22, 2012

Ronan the Accuser of the Kree Empire arrives at Earth with Captain Mar-Vel in tow to pass judgment on whether the planet should be annexed or destroyed.

E5 - To Steal an Ant-Man

Aired: April 29, 2012

When Henry Pym discovers that his Ant-Man equipment has been stolen and being used by a criminal, he hires Heroes for Hire to recover it.

E6 - Michael Korvac

Aired: May 06, 2012

The Avengers receive a man who appears to have been experimented on by aliens, and now hunted by another extraterrestrial group.

E7 - Who Do You Trust?

Aired: May 13, 2012

Iron Man learns from Nick Fury that the Avengers has been infiltrated by a Skrull impostor and the team turns against each other.

E8 - The Ballad of Beta Ray Bill

Aired: May 20, 2012

Thor meets an alien trespasser whose hostility and monstrous appearance belie his unexpected worthiness to wield his hammer, Mjolnir.

E9 - Nightmare in Red

Aired: June 24, 2012

SHIELD is apparently attacked by the Hulk, but Banner is accounted for elsewhere at the same time while this Hulk is red in color.

E10 - Prisoner of War

Aired: July 01, 2012

The real Captain America and his fellow prisoners attempt to escape their Skrull prison.

E11 - Infiltration

Aired: July 08, 2012

A Skrull team posing as The Avengers invades Wakanda with only Ms. Marvel able to help the Black Panther.

E12 - Secret Invasion

Aired: July 15, 2012

The Skrull Empire initiates their seizure of Earth and the Avengers are hard pressed to thwart it.

E13 - Along Came a Spider…

Aired: July 22, 2012

With Captain America's reputation now in tatters, the superhero and the similarly maligned Spider-Man find themselves trying to thwart a prisoner transport interception.

E14 - Behold… The Vision

Aired: July 29, 2012

Captain America and friends travel to Wakanda to repair his shield, unaware that a powerful android is hunting them to capture it among other objectives.

E15 - Powerless

Aired: August 05, 2012

The Enchantress offers Loki a chance to exact his revenge on Thor and the Avengers for thwarting his conquest of the Nine Realms, and uses a spell to strip Thor, Captain America, and Iron Man of their powers. Now, the helpless heroes must defeat Loki - his soul now in command of a powerful Asgardian weapon known as the Destroyer - without their abilities.

E16 - Assault on 42

Aired: August 12, 2012

When an Avenger group visits SHIELD's special prison in the Negative Zone, they soon find themselves under siege by a mysterious enemy.

E17 - Ultron Unlimited

Aired: August 19, 2012

Ultron orders the Vision to lead his android impersonators of the Avengers in capturing the originals.

E18 - Yellowjacket

Aired: September 09, 2012

When Henry Pym is apparently killed, a new vigilante using equipment broadly similar to the scientist's is discovered attacking criminals.

E19 - Emperor Stark

Aired: September 16, 2012

After a month of being dormant for repairs, The Vision finds the world under the control of Tony Stark.

E20 - Code Red

Aired: September 23, 2012

When there is a sudden exposure of a malignant virus around the Avengers mansion, the Secretary of Defense blames the team and lays siege of the headquarters.

E21 - Winter Soldier

Aired: September 30, 2012

While dealing with the Red Skull's escape with his Sleeper robots, Captain America also investigates the villain's former henchman who seems disturbingly familiar.

E22 - The Deadliest Man Alive

Aired: October 07, 2012

With the Hulk apparently rampaging wild, the Red Hulk comes to the Avengers to request to join.

E23 - New Avengers

Aired: October 14, 2012

When the Avengers are apparently killed by Kang the Conqueror, an automatic function created by Tony Stark calls up several allies up as replacements.

E24 - Operation Galactic Storm

Aired: October 21, 2012

As warned, the Kree Empire arrive to threaten Earth.

E25 - Live Kree or Die

Aired: November 04, 2012

The battle against the Kree Empire continues, with Captain Mar-Vell facing an agonizing moral decision in the conflict.

E26 - Avengers Assemble

Aired: November 11, 2012

The Avengers and his allies face the ultimate test when Galactus, the Devourer of Planets comes to consume Earth.